HARTFORD — Northeast Utilities says the cost to restore power after the October snowstorm will be more than $200 million.

In a filing with the Securities and Exchange Commission on Wednesday, the Hartford-based parent company of Connecticut Light & Power and Western Massachusetts Electric Co. said costs will be $202.5 million. Most of that, $162.8 million, is for restoration efforts at CL&P. About 830,000 Connecticut customers were without power.

Northeast Utilities says $23.5 million will pay for restoration costs at Western Massachusetts Electric and $16.2 million for a third subsidiary, Public Service Co. of New Hampshire.

Northeast Utilities said its fourth-quarter earnings will not be materially affected by the storm, except for an $18 million charge to investors, or 10 cents per share, for a fund to reimburse some costs for residential customers.